X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=graph.c;h=5c865dcf2964fc4c809b1011d45fdbe45c9f3f65;hp=06cfb1ac02bbbd48fd685c99a4d87aac1d963057;hb=d0ec1d7a13f84f467e9dbedef523ce5ab44d660d;hpb=6bc821bd8647de03b9f365160fc3d492dc6a54bd

diff --git a/graph.c b/graph.c
index 06cfb1ac..5c865dcf 100644
--- a/graph.c
+++ b/graph.c
@@ -180,7 +180,7 @@ static double maxdouble(double a, double b)
 static double find_double_values(struct graph_label *l, double_comparator cmp)
 {
 	struct flist_head *entry;
-	double answer, tmp;
+	double answer = 0.0, tmp;
 	int first = 1;
 
 	if (flist_empty(&l->value_list))
@@ -586,6 +586,8 @@ void line_graph_draw(struct graph *g, cairo_t *cr)
 		goto skip_data;
 
 	cairo_set_line_width(cr, 1.5);
+	cairo_set_line_join(cr, CAIRO_LINE_JOIN_ROUND);
+
 	flist_for_each(lentry, &g->label_list) {
 		i = flist_entry(lentry, struct graph_label, list);
 		first = 1;
@@ -600,9 +602,8 @@ void line_graph_draw(struct graph *g, cairo_t *cr)
 			if (first) {
 				cairo_move_to(cr, tx, ty);
 				first = 0;
-			} else {
+			} else
 				cairo_line_to(cr, tx, ty);
-			}
 		}
 		cairo_stroke(cr);
 	}
@@ -852,6 +853,17 @@ static void graph_free_labels(struct graph *g)
 	}
 }
 
+void graph_clear_values(struct graph *g)
+{
+	struct flist_head *node;
+	struct graph_label *i;
+
+	flist_for_each(node, &g->label_list) {
+		i = flist_entry(node, struct graph_label, list);
+		graph_free_values(i);
+	}
+}
+
 void graph_set_color(struct graph *gr, graph_label_t label, double red,
 		     double green, double blue)
 {